US6905228B1ExpiredUtility

LED lighting fixture

Assignee: ZENI LITE BUOY CO LTDPriority: Nov 5, 1999Filed: Nov 3, 2000Granted: Jun 14, 2005
Est. expiryNov 5, 2019(expired)· nominal 20-yr term from priority
Y10S362/80F21Y 2115/10F21V 19/0055F21V 5/046F21W 2111/00F21Y 2107/60
78
PatentIndex Score
66
Cited by
9
References
7
Claims

Abstract

In the centers of each of unit-type lenses that constitute a lens, a plurality of elliptically light distributing LEDs being arranged circularly in a horizontal direction in such a way that a wider divergence angle of each LED is set to be oriented horizontally. The unit-type lenses are stacked and fastened by a screw that runs through the bosses of the unit-type lenses.

Claims

exact text as granted — not AI-modified
1. An LED lighting fixture wherein a plurality of elliptically light distributing LEDs are arranged radially on a horizontal circumference and wherein each of said plurality of elliptically light distributing LEDs have a wider divergence angle horizontally than vertically. 
   
   
     2. The LED lighting fixture according to  claim 1 , further comprising a lens provided with a diffusion part that diffuses light only in a horizontal direction. 
   
   
     3. The LED lighting fixture according to  claim 2 , wherein the diffusion part is a film. 
   
   
     4. An LED lighting fixture wherein a lens is comprised of a cylindrical lens, and a plurality of elliptically light distributing LEDs are provided in a center of said cylindrical lens and arranged radially on a horizontal circumference and wherein each of said plurality of elliptically light distributing LEDs have a wider divergence angle horizontally than vertically. 
   
   
     5. The LED lighting fixture according to  claim 4 , wherein said lens is comprised of a plurality of said cylindrical lenses that are stacked one upon another. 
   
   
     6. The LED lighting fixture according to  claim 5 , wherein the stack of said plurality of cylindrical lenses are fastened together by a screw that extends axially of said cylindrical lenses and though bosses provided in a center of each of said plurality of cylindrical lenses. 
   
   
     7. An LED lighting fixture comprising a plurality of LEDs each having a horizontal divergence angle of 120°–150°, which is wider than that of a conventional LED, and a vertical divergence angle that is narrower than that of a conventional LED.

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